Tile-coating machine.



F. 5.. GOLDSMITH.

v v TILE COATING MACHINE. I APPLICATION FILED MA: 1, 1 903. RENEWED MAY 31, 1904. 2 82- Patented June 29,1909.

6 SHEETS-SHEE'I 1.

' Inventor I Witxiessesf 1 M Attorney F, E. GOLDSMITH. TILE COATING MACHINE. APPLICATION FILED Mn 1, 190a; RENEWED MAY 31, 1904.

926,182. Patented June 29, 1909.

6 SHEETS-SHEET 2.-

Witnesses: E Y InVeritor E Sw Wu. s. Attorney F. E. GOLDSMITH.

TILE UOATINGVMAGHIN'E. APPLIOATION rmm my 1, 1903. nmr nwnn MAY 31, 1904.

Patented June'29,1909.

a snimws-snnm a.

Inventor Witnesses Attorney F. R OLDSMITH.

TILE COATING MACHINE. APTLIGATIOH FILED MAY 1, 1903. RENEWED MAY 31, 1904.

926, 182. I Patented June 29, 1909.

a SHEETS-SHEET 4.

mi Q. Witnesses: Inventor Attorney m5 mmms PETERS 0a., wnsumarom-mc,

GOLD TILE COATING I APPLIQATIOH FILED Lu 1, 1903. RENEWED F E. SMITH.

MACHINE Y31,1904. Patented June 29,1909.

esnnms-snnm 5.

F. E. GOLDSMITH.

TILE COATING MACHINE. APPLICATION FILED MAY 1, 1903. RENEWED IAY 31, 19. 9%, 1 2, Patented-June 29, 1909,

6 SHEETS-SHEET 8.

ll!IIIIIIIIIIIIIIII;IIIIH ,EEIHIII Hill I! lllll r- W a 'Witnesse's: Inventor M. s. WM l Attorney TINITED sraras rArE r OFFICE.

FREDERICK El eoLns Tn, oFnAM1LroN,.on1o,asslcnon, BY MESNE asslennnn'rs, TO rnnenaaivno MACHINERY oonrany, or HAMILTON, onto.

he. seems;

i atented June 2Q, 1969.

Application filed m 1, 1909, Serial No? 155,115. Renewed May 31, 1904, Serial nu. 210,579.

To 'a'iZ whom it my camera.-

Be it known that I, Faabamca E. Gonosiitrrii, a citizen of the United States, residing in Hamilton, Butler county, Ohio, have invented certain new and useful Improve nlents Tile-Coating Machines, of Which the following is a specification. j

This invention relates 7 to machines for coating tile and the like With the liquid ma: tei'ial tzhich subsequently forms the glaze when the tile are fired The desirability of employing machinery for this Work is Very great, both from anecohomic and humani v tarian standpoint; As at present practiced,

in this country and abroad as well, the coat .ing of tile is all done by hand, and usually by sprinkling the coating liquid over the tile or by dippingthe tile into a body of the liquid. In either case the process is slow and the labor-costshigh, While the results are so defective that large ercentage or the product is of an inferior grade. In both cases, also, the process employed results in a partial coating of theedges Well as the faces of the tile, and this not only inyolves a Waste of the coating niat'erial, which is pensive, but renders it necessary that the edges of the tile thus coated should be scraped off in subsequent operation and at a considerable additional cost. Moreover,

ping of the hands ihto the coating material, and the latter is of a poisonous nature,

usually a lead com ound, the operatives bechine diseased and can Work at the trade only for hort periods at a time. And this is particularly true With childre Who are at present largely employed on this Work in tile manufacturing establishments.

I have devised mechanism for coating ceramie articles such as tile, brick, etc., which does away With hand labor and produces better results than have heretofore been attained. j

Broadly considered, my intention comprises a coatingdevice, a 'conv'eyer' for mov- I ing the objects to be coated across the coating device, a res rv ir for coating material, means for agitating and 'keepingin proper ccnaitionthematerial in the reservoir and means for supplying coating material from the reservoir to the coating device. In addition, the mechanism is frequently arranged so that coatlng material 1s clrculated from the reservoir to the coating device in excess of the amount required for deposition upon the objects. The excess may be arranged to return to the reservoir from the coating device.

A particular machine constituting one of the embodiments of the invention maybe described in general termsas follows: The coating deV-iceis a roll which dips into a shallow pool of boating-material that is constantly renewed from actively agitated body or mass of such material constituting a main source of supply. A most satisfactory means of providing such a shallow pool of active and constantly agitated coating material, I have found to consist in a continuous or endless surfaced dipping member, preferably a large roll' or drum, mounted to dip and rotate in the main body of coating material and arranged in conjunction with a dam orabutment' extending across the face of the drum, and forming a curved spout contiguous to the coatingroll,through Which the coating material passes, the spout terminating in a somewhat restricted opening or discharge slot, from Which the coating material is projected With more or less velocity upon the face of said roll at varying heights, depending upon the adjustment of 1 the spout and slot effected by movement of A g j the dam. This dam intercepts the film of bothoif these processes necessitate the dip side of the dam from Which the coating material approaches. Vith this construction the dipping drum acts, in effect, as a pump to keep the poolreplenished with freshly .miXed coating material of practically uniform coiisisten'cy, and the coating roll, rotating tlirough this pool has its surface continuously supplied With this perfectly mixed material, ready to be applied to the tile. The agitation of the main body of coating material may in this case be accomplished by the clipping aneniber or drum itself, which, to this end, will be arranged to dip into such material nearly to the bottom of the tank or vat in which the material is pro vided, and may, as a further improvement, be provided with suitable vanes or arinsfor more completely stirring up the material as the drum rotates. All of Which, together with various other features of improvement,

will be fully understood from the following detailed description of a tile coating machine constructed in accordance with my invention in one of the forms in which may be practically embodied and illustrated in the accompanying drawings, in which Figure 1 is a side elevation of the machine provided with my improvements. Fig. 2 is an opposite side elevation thereof. Fig. 3 is a top plan view. Fig. 4: is a vertical longitudinal section taken on line b of Figs. 3 and 6. Fig. 5 is an enlarged detail of the coating roll and adjacent parts of the machine. Fig.6 is a vertical transverse section of the machine taken on line a of Figs. 1, 2 and 4. Fig. 7 is a perspective view of one of the agitator blades.

In said drawings, 1 designates a vat for containing the liquid coating material, and 3 a drum or wheel mounted to rotate within the vat and dipping nearly to the bottom thereof. Just above the drum 3 is a coating roll 22, the periphery of which rotates in proximity to the periphery of the drum 3,

but does not come quite in contact with it.

Extending across the face of the dipping drum 3, at a point adjacent to the lower portion of the coating roll 22, is a dam or abutment 20 which intercepts the film or layer of coating material that clings to the rising surface of the drum, and causes it to pile up beneath the coating roll in a sort of shallow pool, into which the coating roll clips. The drum thus serves, as it were, as a pump to constantly supply fresh material to this pool and thence to the coating roll, and for this purpose may, if desired, be provided with a covering 4, of finely corrugated rubber, or the like, as shown. This dam 20 is herein shown as made in the form of a concave blade or scraper, although it may be of any other suitable shape or construction,

and is adjustably mounted so that its lower edge can be moved closer to or farther from v the surface of the drum, or advanced or 7 elevation in relation to the axis of the coating roll. It will be evident that coating material is introduced to the spout between the lower edge of the dam and the coating roll at a considerable velocity (depending upon the speed of the drum 3), and by reason of its momentum and decreasing size of the spout. And by movement of the coating roll, the coating material is ejected through the slot with more or less force upon the surface of the coating roll. It is also apparent that by adjustment of the dam horizontally and vertically the elevation at which the coating material is finally delivered to the coating roll may be varied as desired to meet varying conditions imposed by the character of'the coating materialemployed, the nature of the biscuit to be coated, etc. To this end the'dam is conveniently made as a part of a generally rectangularframe work 18, which surrounds the lower portion of the coating roll, and sets loosely down into an aperture 17 in a supporting plate 14 that also acts as a cover plate for the mid dle portion of the vat. A screw and slot connection 19 between the plate 14 and frame 18, enables this frame and the dam to be i adjusted horizontally within the aperture 17, while adjusting screws 16, at one end of the plate 14, enables the entire plate, with the frame and dam, to be adjusted vertically, the other end of the plate being secured over studs 15 which permit of its tilting sufficiently for the purpose of this adjustment. I

WVhile the principal object of the dipping drum 3 is to raise the coating material to the coating roll, as before stated, it is also utilized, in this instance, as a means for constantly agitatingthe body of such material within the vat, and with a view of intensifying this action, may be provided with stirring devices, such as cups 7 and blades 8, which devices are herein shown as interchangeably inserted in dovetailed sockets 6 formed on the interior of the rim of the drum. The cups 7, as the drum revolves, will become filled with liquid from the vat as they pass through it, and will empty it back into the vat again, as they are raised above the surface of the material in the complete rotation of the drum. The blades 8 are shown as projecting outwardly from the rim of the drum, and are provided with oblique flanges 9 which tend to urge the material inwardly from the wall of the vat toward the drum as the latter revolves, and in this manner aid in its constant agitation. The relative number of cups and blades used, will depend upon the character of the particular material in the vat, and may be obviously varied as desired, the effect of the agitation being in all cases to keep the material actively stirred up and of uniform consistency throughout and at its surface as well as at the bottom of the vat. The withholding of the coating roll from actual contact with the dipping drum, also enables the surface velocities of these members to be independently regulated, and ordi narily that of the drum, in view of its agitating function, will be much faster than that of the coating roll. These relative velocities will, however, be required to be varied according to the particular nature of the coating material used, and according to atmospheric and other changeable conditions.

As herein shown, the machine is arranged to be driven-by a driving cone 5 on the end of the shaft 2 of the dipping drum, whichshaft, to thi endfis exteiided through a i in apron or ta'blle 25, and are thereby delivstnitfing hon ii the -sid-e of the vat. A cone is *ai provided on the '2 and is arranged to be (bolted to a corresponding cone 29 on a counter-shaft 28. This countershaft carries a gear 3 0 which intern-reshes with a gear 31 on the shaiit of the coating roll '22, and thus drives the coating roll with a greater or less speed reiative to the speed of the dipping *druin, according to the inanner in which the belt is adjusted on the cones 29. The actual surface velocity the coating roll will also he adjusted by these driving 1 means with reizerenc-e to the character and consistency of the coating niateriail, in such manner as to apply the material to the tile at a rate productive of the best results. tile may be passed over the coating roll lby hand, hat w-i ll advantageously he ied to and from it by two "carrier mechanisms, such as the endless belts and 27, one arranged to travel toward and the other away from the refi l. The keel-1: 25 serves as a feedi-irg-tab le for convenience in supplying tile to the coat- 5 g ro l l. The upper surfaces of these. carrier belts are preferably arranged slightly be low the top of the roll so that the weight or the tide rests upon the roll in passing over it, and tends to hring'it -sut1i-cie1itly in contact with the roll to properly receive the coating material. With some coating materials and styies of tile, however, some pressure in addition to the weight of the tile is desirahie, and this may he conveniently at torded, when necessary by a pressure roller 3'15 ot any suitable character, herein shown as a gravity roller mounted in bearings 35 w 10h lide vertically in guides 21, just above the coating rolil.

To drive the aprons 253 and 27 theshaf-ts ot "the roi-lers 28, around which their proxinaate ends arecarried, are shown as provided with pinions 33, of which one intermeshes with the gear 30 on the shaft 28, While the otFl-i er interineshes with an idler 82 that intermeshes with and is driven by the pinion 31 of the coating roll. This gearing is so proportioned as to drive the "bearing o li apron 27 somewhat more rapidly than the feeding apron 25, in order to insure that the tile avid] be carried away at least as rapidly as they are fed to the coating roll. The bearings tor these apron rollers 23, and also for the Trailers 24, around which the aprons are carried at their outer ends, are shown as mounted on plates 10 and 12 which cover the ends 0 1. the heyond the middle cover plate 14, the outer bearings being adjustable that the tension of the aprons may be regirlated as-desi-red. These cover plates 1 0 and 12 are shown ashinged to the vat at 1i and 13, respectively, and may be thrown back to "give access to the vat.

Tnthe operation of the machine, the tile are placed, t'ace downward, upon the feeding The ered to the coating roll, over which they pass to the bearing 'oii apron 27 that discharges them troin the machine. As the tile pass over the coating roll they become uniformly surfaced with the coating material, w'hidh, owing to their very absorbent nature, is inst-antly picked up or absorbed from the roll, and T1 mediat-ely becomes suliiciently dry and firm to permit of the subsequent contact edge of the tile so as to require subsequent removal, and at no point in the entire operation is it necessary tor the person running the machine to come in contact withthe tile or coating material.

It will he understood that wide changes may be made in the construction of the tile coating machine thus described, without departure from the hread spirit of the invention claimed, and that the word tile as eni-pioyed throughout this specification, is intended to'include, generical ly, any sort oi bricks :or blocks to which a glazing coating is to be appilied.

in operation the rotary pump or drum raises the coating and delivers it in .a icontinuons stream from the content-s of the tank upon the face of the coating roll in;

tiled Apr. 3, 1905, for coating machine; Se-

riai Numher 257,370, filed Apr. 25, 1905, i'or process of coating tiles.

I claim as my invention l. The combination with a coating roll, of Inovabie transmitting means for discharging coating material from the vat into a pool "beneath the roll into which the latter dips, substantially as described.

2. The combination with a coating roll, o l? a dam in proximity to the lower portion of said roll, and movable transmitting means for discharging coating material from the vat against the dam to form a pool into which the "roll dips, substantially as described.

3. The combination with a coating roll, of movable transmitting means for discharging coating material from the vat into a pool beneath the roll into which the latter dips, and means for conveying tile over said coating roll, substantially as described.

1. The combination with a coating roll, of a dam in proximity to the lower portion of said roll, movable transmitting means for discharging coating material from the vat against the dam to form a pool into which the roll dips, and means for conveying tile over said coating roll, substantially as described.

5. The combination with a vat for the coating material, of a drum running in the vat, a coating roll arranged in proximity to the drum, and a dam arranged in proximity to the drum and coating roll, and against which coating material is discharged to form a pool into which the roll dips, substantially as described.

6. The combination with a vat. for the coating material, of a drum running in the vat,a coating roll arranged in proximity to the drum, a dam arranged in proximity to the drum and coating roll, and against which coating material is discharged to form a pool into which the roll dips, and means for conveying tile over said coating roll, substantially as described.

7. The combination with a vat for the coating material, of a drum running in the vat, a coating roll arranged in proximity to but out of contact with the drum and receiving coating material therefrom, a dam in proximity to the drum and roll and means for independently varying the surface velocities of the drum and roll, substantially as described.

8. The combination with a vat for the coating material, of a drum running in the vat, a coating roll arranged in proximity to but out of contact with the drum and receiving coating material therefrom, means for independently varying the surface velocities of the drum and roll, and means for conveying tile over said coating roll, substantially as described.

9. The combination with a vat for the coating material, of a drum running in the vat, a coating roll arranged in proximity to the drum, a dam arranged in proximity to the drum and coating roll, and against which coating material is discharged to form a pool into which the roll dips, and means for independently varying the surface velocities of the'drum and roll, substantially 1 as described.

10. The combination with a vat for the coating material, of a drum running in the l team a pool into which the roll dips, means for conveying tile over said coating roll, and means for independently varying the surface velocities of the drum and roll, substantially as described.

11. The combination with a vat for the coating material, of a coating roll, and movable transmitting means for agitating the coating material within the vat and discharging it into a pool beneath the coating roll, substantially as described.

12. The combination with a coating roll, of a dam in proximity to the lower portion of said roll, and movable transmitting means for agitating the coating material within the vat and discharging it against the dam to form a pool into which the roll dips, substantially as described.

13. In a tile. coating machine, the combination, substantially as set forth, of a vat for the coating material, a drum mounted therein on a horizontal axis, mechanism disposed within the vat and working below and above the surface of the coating material therein for agitating the coating material, a coating roller disposed across but free from the upper portion of the face of the drum and receiving coating material therefrom, and mechanism for conveying tiles over said coating roller.

14. In a tile coating machine, the combination, substantially as set forth, of a vat for the coating material, a drum mounted therein on a horizontal axis and provided with a non-metallic jacket, mechanism disposed within the vat and working below and above the surface of the coating material therein for agitating the coating material, a coating roller disposed across the upper portion of the face of the drum and receiving coating material therefrom, and mechanism for conveying tiles over said coating roller.

15. In a tile coating machine, the combination, substantially as set forth, of a vat for the coating material, a drum mounted therein on a horizontal axis, mechanism mounted upon the drum within the vat and working below and above the surface of the coating material therein for agitating the coating material, a coating roller disposed across but free from the upper portion of the face of the drum and receiving coating material therefrom, and mechanism for conveying tiles over said coating roller.

16. In a tile coating machine, the combination, substantially as set forth, of a vat for the coating material, a drum mounted therein on a horizontal axis, cups mounted on the drum, a coating roller disposed across the upper portion of the face of the drum and receiving coating material therefrom, and mechanism for conveying tiles over said coating roller.

17. In a tile coating machine, the combination, substan allyas set for h, of a vat f r the coating m rial, a drum mounted the on a horizontal axis, agitator blades mounted on the drum and projecting toward the side wa ls of the vat, a coa ng rol r d sposed across but free from theupper portion of the face of the drum and receiving coating material therefrom, and mechanism for con! disposed across the upper portion of the face of the drum and receiving coating material therefrom, and mechanism for conveying tiles, over said coating roller. 19. In a tile coating machine, the combination, substantially as set forth, of avat for the coating material, a drum mounted therein on ahorizontal axis and provided with socks ets at the sides of'itsrim, devices secured in said sockets for agitating the coating material as the drum rotates, a coating roller disposed across the upper portion of the face of the drum and receiving coating material therefrom, and mechanism for conveying tiles over said coating roller.

20. In a tile coating machine, the c0mbination, substantially as set forth, of a vat for the coating material, a drum mounted therein on a horizontal axis, mechanism disposed within the vat and workingbelow and above the surface of the coating material therein for agitating the ooatingmaterial, a coating roller disposed across but free from the upper portion of the face of the drum and receiving coating material therefrom, and aprons at the front and the rear of said coating roller to convey tiles over said roller.

21.,In a tile coating machine, the combination, substantially as set forth, of a vat for the coating material, a drum mounted therein on a horizontal axis, mechanism disposed Within the vat for agitating the coating material therein, a coating roller dis posed across the upper portion of the face of the drum and receiving coating material therefrom, and aprons at the front and the rear of said coating roller to convey tiles over said roller, the carrying surface of said aprons being below the level of the top of the coating roller.

a 22. In a tile coating machine, the combination, substantially as set forth, of a vat for the coating material, a drum mounted therein on a horizontal axis, mechanism disposed within the vat for agitating the coating material therein, a coating roller disposed across the upper portion of the face of the drum and receiving coating material therefrom, hinged lids for the vat at the front and the rear of the coating roller, and aprons mounted on said lids;

223, in a tile coating machine, the combination, substantially as set forth, of a vat for the coating material, a drum mounted therein (in, a horizontal axis, mechanism disposed. vithiu the vat for agitating the coating, material therein, a coating roller disposed across the upper portion of the face of the drum and receiving coating material therefrom, hinged lids for thevat at the front and the rear of the coating roller, aprons mounted on said lids, and means for vertically adjusting the edgos of said lids contiguous to the coating roller. E24. 111 a tile coating machine, the combination, substantially as set forth, of a pair of endless aprons with their upper surfaces disposed in substantially the same horizontal plane, apron rollers for the support and actuation of said aprons, a coating roller disposed in the gap between the contiguous ends of the two aprons and having its upper surface higher than the upper surfaces ofthe aprons and arranged to have tiles carried over it by the action of the two aprons, and means for continuously supplying the periphery of the coating roller with coating material. 1-

25. The combination of a coating surface, a dam in proximity thereto and movable transmitting means for supplying coating to the dam, j

26.. The combination of a dam forming a coating pool, a coating surface dipping therein and movable transmitting means for supplying coating tothe dam.

27. The combination with a tank, an agitator movable therein, a rotative cylinder mounted across the top of the tank, a pressure-roll mounted over the cylinder, a feeding-table leading toward and a delivery apron leading from the top of the cylinder,

of a pump arranged to deliver in a continuous stream the contents of the tank upon the face of the cylinder.

28., In combination, a tank, a rotative cylinder with an elastic face, and a pump arranged todeliver the liquid contents of the tank on the upper portion of the face of the cylinder.

29. The combination with a tank, a rotative cylinder mounted thereon, a pressureroll mounted thereover, and a feedingtable, of adjustable means to deliver the contents of the tank in a continuous stream at diiferent elevations upon the face of the cylinder.

30. The combination of a tank, a cylinder having an elastic face and mounted in fixed bearings to rotate 1n a vertlcal plane, a vertically-adjustable spout communicating with the tank and formed with a discharge-slot adjacent to, and parallel with, the cylinder, whereby the contents of the tank may discharge on the cylinder at different elevations.

31. In combination, a rotative cylinder, a feeding-table, a tank, an agitator therein, and adjustable means arranged to deliver the liquid contents of the tank at different elevations on the face of the cylinder.

32. The combination of a coating reservoir, an agitator within the reservoir, a coating device, a pump for supplying coating material from the reservoir to the coating device and means for moving objects to be coated across the coating device.

33. The combination of a reservoir for coating material, an agitator within the reservoir, a coating device, means intermediate the reservoir and the coating device for circulating coating material from one to the other, and means for conveying objects to be coated across the coating device so that coating is applied to their lower surfaces.

34. The combination of a reservoir for coating material, an agitator moving within the reservoir, a coating device constructed and arranged to deliver coating material at substantially its upper surface, means for moving objects to be coated across the coat ing device in substantially a horizontal plane and means for circulating coating material from the reservoir to the coating device in excess of the amount actually required for deposition upon the objects.

35. The combination of a coating reservoir, an agitator moving within the reservoir, a coating device for applying coating material to ceramic objects, means for mov-' ing objects to be coated to the coating device so that they receive coating material on their lower surfaces and a pump for conveying coating material from the reservoir to the coating device in excess of the amount actually required.

36. The combination of a coating-receptacle, a coating surface, transmitting means for supplying coating from the receptacle to the coating surface, a movable cover for the receptacle, and a conveyer mounted upon the cover.

37. In coating apparatus, the combination of a frame, a coating device thereon, a feed belt, a delivery belt, and a support for one of the belts hinged to the frame.

38. In coating apparatus, the combination of a frame, a coating receptacle, a coating device above the receptacle, a support hinged to the frame and feed and delivery belts for the coating device, one of said belts being mounted on said support.

39. In coating apparatus, the combination of a frame, a coating receptacle, a coating device above the receptacle, a cover hinged near one end of the frame so that its free end is adjacent to the coating device and an endless belt carried by the cover.

40. In an apparatus for coating, the combination of a frame, a coating receptacle, a coating device above the receptacle, a lid hinged to the frame at one side of thecoating device with its free end adjacent to said device, another lid hinged to the frame at the otherside of the coating device with its free end adjacent to said device and feed and delivery belts, one carried by each of said lids.

FREDERICK E. GOLDSMITH.

Witnesses:

ELMER R. SHIPLER, M. S. BELDEN. 

